nanog mailing list archives

rfc1978 help

From: adrian kok <adriankok2000 () yahoo com hk>
Date: Sat, 6 Nov 2004 02:07:19 +0800 (CST)


Hi all

Sth I want to clarify:

1/ 
240.0.0.0/5         - Class E Reserved
248.0.0.0/5         - Unallocated
Sometimes I got it should /4 or /5 ?
240.0.0.0/4       - Class E Reserved
248.0.0.0/4         - Unallocated

2/ Can I block it in the firewall for
"255.255.255.255/32  - Broadcast"?

deny ip from any to 255.255.255.255/32
deny ip from 255.255.255.255/32 to any


3/ I got the following. ls it normail?
why there is connection to the broadcast address

tcp        0      1 202.64.230.8:33397    
192.168.255.255:25      SYN_SENT

Deny TCP 202.64.230.8:33021 10.254.254.254:25 

Deny TCP 202.64.230.8:57798 172.21.143.58:25 


Thank you so much

Current thread:

Re: Network Monitoring System - Recommendations? Joe Shen (Oct 31)
- Re: Network Monitoring System - Recommendations? Alexei Roudnev (Nov 01)
  - Re: Network Monitoring System - Recommendations? Joe Shen (Nov 01)
    - Message not available
    - Re: Network Monitoring System - Recommendations? Alexei Roudnev (Nov 01)
    - Re: Network Monitoring System - Recommendations? Alexei Roudnev (Nov 01)
- <Possible follow-ups>
- Re: Network Monitoring System - Recommendations? Richard J. Sears (Nov 04)
- RE: Network Monitoring System - Recommendations? Charlie Khanna - NextWeb (Nov 04)
  - Re: Network Monitoring System - Recommendations? Chris A. Epler (Nov 05)
    - rfc1978 help adrian kok (Nov 05)
    - Re: rfc1978 help Jeroen Massar (Nov 05)
    - Re: rfc1978 help Jess Kitchen (Nov 05)
    - Message not available
    - Re: rfc1978 help Jeroen Massar (Nov 05)